If I have changed a CSS rule via javascript, do I need to do anything to ‘refresh’ the browser to redisplay the current page using the updated rules?
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If I have changed a CSS rule via javascript, do I need to do anything to ‘refresh’ the browser to redisplay the current page using the updated rules?
No–a refresh isn’t necessary–and if it did occur it would restore the document to its original state.
The change should take place immediately (setting display: none, for example). Use FireFox plugin FireBug (http://getfirebug.com/) or the IE Developer Toolbar (built into IE8 and available as a free plugin for previous versions) to dynamically view the HTML to ensure the change you think is taking place is actually occurring.